mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-26 22:31:05 +00:00
00040c8900
This gets everything but the actual shadow map bindings working: the validation layers don't like my type punning (which may well be the right thing) and specialization constants don't help (yet, anyway) but I want to get things into git.
77 lines
2 KiB
GLSL
77 lines
2 KiB
GLSL
#version 450
|
|
#extension GL_GOOGLE_include_directive : enable
|
|
|
|
#include "lighting.h"
|
|
|
|
layout (input_attachment_index = 0, set = 2, binding = 0) uniform subpassInput color;
|
|
layout (input_attachment_index = 1, set = 2, binding = 1) uniform subpassInput emission;
|
|
layout (input_attachment_index = 2, set = 2, binding = 2) uniform subpassInput normal;
|
|
layout (input_attachment_index = 3, set = 2, binding = 3) uniform subpassInput position;
|
|
|
|
layout (set = 3, binding = 0) uniform sampler2DArrayShadow shadowCascade[32];
|
|
layout (set = 3, binding = 0) uniform sampler2DShadow shadowPlane[32];
|
|
layout (set = 3, binding = 0) uniform samplerCubeShadow shadowCube[32];
|
|
|
|
layout (location = 0) flat in uint light_index;
|
|
layout (location = 0) out vec4 frag_color;
|
|
|
|
float
|
|
spot_cone (vec4 light_direction, vec3 incoming)
|
|
{
|
|
vec3 dir = light_direction.xyz;
|
|
float cone = light_direction.w;
|
|
float spotdot = dot (incoming, dir);
|
|
return 1 - smoothstep (cone, .995 * cone + 0.005, spotdot);
|
|
}
|
|
|
|
float
|
|
diffuse (vec3 incoming, vec3 normal)
|
|
{
|
|
float lightdot = dot (incoming, normal);
|
|
return clamp (lightdot, 0, 1);
|
|
}
|
|
|
|
float
|
|
shadow_cascade (sampler2DArrayShadow map)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
float
|
|
shadow_plane (sampler2DShadow map)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
float
|
|
shadow_cube (samplerCubeShadow map)
|
|
{
|
|
return 1;
|
|
}
|
|
|
|
void
|
|
main (void)
|
|
{
|
|
//float d = subpassLoad (depth).r;
|
|
//vec3 c = subpassLoad (color).rgb;
|
|
//vec3 e = subpassLoad (emission).rgb;
|
|
vec3 n = subpassLoad (normal).rgb;
|
|
vec3 p = subpassLoad (position).rgb;
|
|
vec3 light = vec3 (0);
|
|
|
|
LightData l = lights[light_index];
|
|
vec3 dir = l.position.xyz - l.position.w * p;
|
|
float r2 = dot (dir, dir);
|
|
vec4 a = l.attenuation;
|
|
|
|
vec4 r = vec4 (r2, sqrt(r2), 1, 0);
|
|
vec3 incoming = dir / r.y;
|
|
float I = (1 - a.w * r.y) / dot (a, r);
|
|
|
|
float namb = dot(l.direction.xyz, l.direction.xyz);
|
|
I *= spot_cone (l.direction, incoming) * diffuse (incoming, n);
|
|
I = clamp (mix (1, I, namb), 0, 1);
|
|
light += I * l.color.w * l.color.xyz;
|
|
|
|
frag_color = vec4 (light, 1);
|
|
}
|